Practice addition of two 3-digit numbers with regrouping twice. Hints are given about how to complete the addition in column form
A. Add 2-digit numbers using the standard algorithm with regrouping
B. Add 2-digit numbers using the standard algorithm with regrouping to solve word problems
C. Add 3-digit numbers using the standard algorithm with regrouping (Level 1)
D. Add 3-digit numbers using the standard algorithm with regrouping (Level 2)
E. Add 3-digit numbers using the standard algorithm with regrouping to solve word problems (Level 1)
G. Add 3-digit numbers using the standard algorithm with regrouping (Level 3)
H. Add 3-digit numbers using the standard algorithm with regrouping to solve word problems (Level 3)